How many times has Data said fascinating in Star Trek?

Answer 1

He said Fascinating a total of 49 times in the original series.

Answer 2

too many. hehe

Answer 3

Some, just enough to have it remind you of Spock, but nowhere near the amount of times he said "Theoretically, it should be possible..." or "It is theoretically possible ...". He said something like that multiple times in a single episode, like in "The Pegasus".